Do not explode if the AppData file is corrupt
trivial: Do not include apps that set 'Comment=' asno string is available
Reassemble the XML file during compose in a smarter way
trivial: Remove upstreamed AppData files
Allow classes to save metadata tags into the AppStream XML file
Be smarter when working out the chars to use in the font icon
Only write the XML file after all the applications have been parsed
Write the <caption> for screenshots
Merge font addons with the same family name
Fix up several trivial AppData issues
trivial: Don't explode if there's an AppData file with no description
Correctly set font metadata when the 'name' table is localized
trivial: Add eSpeak to the GStreamer data file
Support writing multiple package names
trivial: Correctly assign the ApplicationID when merging fonts
A few more appdata files
Merge pull request #10 from sanjayankur31/appstream-additions

Moar appdata files.